Background: I've upgraded from F11 to F15. This is a dual boot setup with Windows on the first partition, then /boot and LVM the next two partitions. The last LVM is then divided into /swap and /. To enable encryption, it is necessary to do so for both.
During startup I "accidentally" discovered the boot process output by pressing the arrow-up key. The boot output stopped and presented a second prompt (after a first graphical prompt) asking for the /swap passphrase. If I leave this, the system will eventually continue the boot process. Yet, I notice a few "failed" flags for things like cryptsetup, WLM (it goes too fast to write more than this; When I read the boot.log in the former case none of these failed flags appear and also the cryptsetup and WLM are not in the log.)
As I am ironing out errors after install, and I see these errors in the output, it leads me to ask, How can I check /swap is properly unlocked?